Automobile radiator



. M. M. LARSEHN AUTOMOBILE RADIATOR Filed usta, v192s s Sheets-Sheet '1 March 16,1926. I 1,576,833

I'IHET zz I -ii March '16 1926.

M. M. LARsEN AUTOMOBILE RADIATOR I 3 Sheets-Sheet 5 Filed August 2, 1923' illlli IIIIIII a 71.41? EM W lt' atented l fter. lh, v i l I UNTTED QFFICE.

- mns 1a. msnm or common, CALIFORNIA.

an'romonrnn nanmr ony Application filed August 2, 1923.' Serial 1%;655327.

' in the radiator and themanner in which water--c1roulates through the two.

-- Similar reference characters refer to similar parts 1n each of the several views.

' ToaZZ whom it'may concern: Beit known. that]; Mans M. LARSEN, a citizen; 'of the United States, residing at Colton, in the county of San'Bernar-dino the and" State of California, have invented new J Hand useful Improvements in Automobile "Ra iators, ofwhich the following is aspecimventiafi relaes m; radiators be Referring specifically to the drawings and particularly to Fig. l, dsignates a metal- 11o casing in which the units, designated generally at T and T Comprised in the.

fradiator embodying .my invention, are an 4 engine passes into the base of the rearward associated -motpr; vehicles and the like, and aipur-pose of invention is thelprovision of a radiator ofig'increased eflic'iency';

' It isalso a purpose of'my invention to provide a radiator which includes two units interconnected to allow the circulation of water from one; unitjto the other, and fans with the units. for creating a forced circulation of air through the unit's.-

- b Another purposegof my invention is the pro- 2 vision of a radiator having water pipes and g air pipes oonstru'ctedand arranged t0 de-' velop maximum cooling eificiency'.

I provide 'a' double radiator having a rear unit and a front unit with'a' fan'between, in

which the hot water circulating from the unit, passes-up through the cooling tubes toanupper head and is-conductedb'y a pipe to the upper head of. a front radiator, passes downwardly through this radiator and back to the engine by a pipeconnected to the 1 lower head'of the front radiator, this pipe passing through the lowerhead of the rearward unit.

. tion a I shown in Fig. 1.

ti l

have herein shown and will describe only one form of radiator embody ing my invention, it is to be understood that various changes and modifications maybe made herein without departing from .thc'. spirit of the invention and the spirit and. scope of theappended claims.

In the'accompanying drawings.-

- Fig. 1 is a view showing in vertical sec.-- tion one form. of radiator embodying my invention. i

Fig. 2 is a view-showing in front elevafront unit of the radiator shown in Although 1 Fig.1. I

Fig. 3 is a view showing in front elevation. 'the rear unitcompr sed in the radiator Figs. 4: and

respectively, ofFig. 1; a

Fig. 6 is a perspective view somewhat diegra'mmatic showing the two units comprised of en 5 are transverse sectional" may be secured in the forward end of the -'cas1ng' l5 in any sultablemanner, and, in'- the present instance, the casing is formed with an mturnedfiange 17 beneath which thescreen 1s secured.- The front unit-T'is adapted to be permanently secured within the casing 15in any suitable manner, while the rear unit T is removably arranged in. thec-asing, to allow. separation of the two units tor repairing or other purposes;

The frontunit "1 is made up of a water 30 jacket including an upperhead'18 having side columns 18' and 18* andfa lower ..head 19 connecting the lower ends of the':;-'side 1 columns .18 and 18 ,and this jacket is proi-lff' 'x .vided with amultiplicity of openings in which are secured; pipes 20 througlr which.

air is adaptedto circulate in. effecting the cooling (if the water withinlthejametg. As clearly shown in Fig. 2, the'wateriijacket is stantialiy rectangular form so as to Q provide asquare opening 21 which is trav ersed at spaced. intervals by conduits 22 through. which water from the upper head '18 1S adapted tocirculate to the lower-head- 19. These conduits 22 are of triangular 9 form. in cross section, as clearly shown in Fig; 4, and any two adjacent conduits are arranged so that their wideedges are disposed at opposite sides ofthe water jacket, thereby producing an intervening space the, transverseaxis of which isdisposed diag-- onally." l iuiy two adjacent intervening spaces are arrangedin converging or diverging relation to each other so that the pasbetweenthe conduits is adapted to be retarded, as will be more fully de- A sage of air scribed hereinafter. I

The rear' unit T ,includes a water acket having an upper head 23 side. columns 23 and 23 extendingfdownwardly from the Q head, a lower head 24 connectingthe lower ends of the side columns 23 and 2359.116,

shape and outline as the waterv jacket of the front unit, and it is also provided with air conducting pipes 19 and waterconduits- 22, the latter being constructed in the. same shaft.

manner as the first water conduits and arranged vertically within the spaces26 and 27 of the'water' jacket between the heads 23, 24 and 25. It' will be noted that the head 25 is also provided with air pipes 19 and with an opening 28 (Fig. 1) inwhich is fixed a bearing block 29 having a sleeve .30

.through whichexte nds a tubular shaft31.

The forward end of the shaft is provided with a fan 32, and a second fan .33 is fixed to the shaft 'at the rear of the unit T and in advance of a bearing 34 formed in the upper end of a standard 35 and provided with a sleeve 36,for the reception of the shaft 31 at the rear of the bearing 34, and

a lubricating cup 38 is in communicationwith the rear end of the shaft 31 for the purpose of 'supplying a lubricant to the bearing sleeves 30 and-36 through the shaft. Openings 39 and 40 are formed in the shaft 31 to allow the passage of the lubricant from the shaft to the bearing sleeves.

The standard 35 is secured to a casing 41- whichembraces the rear cooling unit T, and which is of such a size as to fitwithin the casing 15. I

As clearly shown in Figs. 1 and '6, the upper heads 18 and 23 of the units T and T are in communication with each other through a pipe connection 42 provided with a union 43 which allows of the disconnection of the sections when desired.

The radiator when in applied position'to an internal combustion engine is adapted for connection to the pump of the-cooling system through a ipe 44 so that water is first supplied to t e rear cooling unit T.

The water now circulates through the jacket of this unit and upwardly through the cofinection 42 into the upper head 18 of the front cooling unit. From the head 18, the water traversesthe jacket and the conduits 22 from whence it is discharged into a pipe 45 in communication with'the'lower head 19. This pipe 45 is extended through a suitable opening formed in the jacket of the rear unitT, and is adapted for connection to the water jacket of the gas en- 'gine.

In order to provide access'to the connection 42, and to provide further means by which cool air may be supplied to the rear cooling unit T, the casing 15 is formed with openings 46 spanned by plates 47' removably secured to the casing and formed with openings-48 through which aircan pass into thecasing and between thennits T and T. 1 It A grooved pulley 37 is fixed to the- ,further cooling of the water.

'formation'of the conduits-22, the passage of air between the conduits is retarded sulfieiently to fullyutilize the heat'dissipating property of the air, and in conjunction with cooling property of the air pipes 20, a radiator of maximum cooling efficiency is pro- 1 duced.

It will be. understood that the air produced by' the operation of the fans not only traverses the conduits and pipes of the front cooling unit, but also the pipes and conduits of the rear cooling unit, thereby securing a a This combined cooling action of the unit'sT and T has been found in practice to besufiicient to maintain at all times the temperature of the water below a boiling point. I

It will be noted, referring particularly to Fig. 6, that the circulation of hot .water from the engine enters by the pipe 44 into the lower head 24 of the rearward radiator, passes up the tubes, throughthe cross head 25 to the upper head 23. The pipe 42 carries the water then to the head 18 of the water directly from the engine rising in the radiator gives greater impetus or force to the circulation of the water and allows the thermo-siphon type of cooling to be used with large entrance requiring the extraction of a large amount of heat, With the double radiators connected as shown reliance is not merely placed on the changes of density of the water in the base and top. of the engine and the down flowing current due to-the increased density in the radiator.

What I claim is:

1. A radiator, comprising a pair ofwatcr jackets arranged one in the rear of the other and interconnected, a casing surrounding the water jackets and having openings the-rein throughwhich access may be had to the connections between'the jackets, and perforated doors controlling said openings;

'2. ,A radiator having two water units-with radiating elements spaced-apart each of the units including a head, water columns exunit only from the source of supply, a second.

pipe connecting the upper heads, a third pipe leading from the lower heads of the front unit only to the source of supplv,-sairi pipe passing through anopening in the rearward units 3. A radiator having two independent water jacket radiator units, the rear unit comprising an upper head, water columns extending downwardly from the upper head,

a lower head connecting the lower ends of the-water columns, an intermediate head connecting the intermediate portions of the water columns, there being a multiplicity of horizontal openings through the upper head,

transversely across the rear unit and 'hav-- the water-columns, the lower vhead and the intermediate head, and pipes secured in the openings. t I

L A radiator having two independent water jacket radiator units, the rear unit comprising an upper head, water columns extending downwardly from the upper head, a lower head connecting the lower ends of the water columns, an intermediate head connecting the intermediate portions of the water columns, there being a multiplicity of horizontal openings through the upper head, the water columns, the lower head and the intermediate head, and pipes secured in the openings, there loein a bearing block fixed through the center oi the intermediate head, a shaft rotatably mounted in the bearing block, a fan between the water jacket radiating units upon the shaft, and a second fan behind the rear water jacket radiating unit.

In testimony whereof I have signed my name to this specification.

- 'MADS M. LARSEN. 

